VEHICLE STABILITY ENHANCEMENT CONTROL ADAPTATION TO DRIVING SKILL BASED ON HIGHWAY ON/OFF RAMP MANEUVER
First Claim
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1. A method for determining a driver'"'"'s driving skill of a vehicle, said method comprising:
- determining a vehicle speed signal and a vehicle yaw rate signal from vehicle sensors;
determining whether the vehicle is turning by determining whether the vehicle yaw rate signal is greater than a first yaw rate threshold and, if so, determining that the vehicle has entered a curve that may be a curve portion of a highway on/off ramp;
determining whether the vehicle has exited the curve by determining whether the vehicle yaw rate signal is less than a second yaw rate threshold;
determining whether the difference between the vehicle speed at the beginning of the curve and at the end of the is less than a first vehicle speed threshold and, if so, determining that the curve-handling maneuver is an off-ramp maneuver;
determining whether the increase in vehicle speed during a predetermined time window is less than a second speed threshold;
determining whether the vehicle speed during a predetermined time window of the maneuver is greater than a third speed threshold;
determining whether a difference of the vehicle speed during the time window minus the speed at the start time is greater than a fourth speed threshold;
determining that the maneuver is an on-ramp maneuver if the increase in the vehicle speed becomes less than the second speed threshold and the speed of the vehicle during the predetermined time window is greater than the third speed threshold and the difference in the vehicle speed during the time window minus the speed of the vehicle at the start time is greater than the fourth speed threshold; and
classifying the driver'"'"'s driving skill using information obtained from the on-ramp or off-ramp maneuver.
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Abstract
A system that classifies driver driving skill based on on-ramp or off-ramp maneuvers. The system reads sensor signals for vehicle speed and vehicle yaw rate. The system determines that the vehicle has made an on-ramp or off-ramp maneuver using the vehicle speed signal and the yaw-rate signal and then classifies the driver'"'"'s driving skill using selected discriminant features obtained or derived from the on-ramp or off-ramp maneuver.
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Citations
20 Claims
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1. A method for determining a driver'"'"'s driving skill of a vehicle, said method comprising:
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determining a vehicle speed signal and a vehicle yaw rate signal from vehicle sensors; determining whether the vehicle is turning by determining whether the vehicle yaw rate signal is greater than a first yaw rate threshold and, if so, determining that the vehicle has entered a curve that may be a curve portion of a highway on/off ramp; determining whether the vehicle has exited the curve by determining whether the vehicle yaw rate signal is less than a second yaw rate threshold; determining whether the difference between the vehicle speed at the beginning of the curve and at the end of the is less than a first vehicle speed threshold and, if so, determining that the curve-handling maneuver is an off-ramp maneuver; determining whether the increase in vehicle speed during a predetermined time window is less than a second speed threshold; determining whether the vehicle speed during a predetermined time window of the maneuver is greater than a third speed threshold; determining whether a difference of the vehicle speed during the time window minus the speed at the start time is greater than a fourth speed threshold; determining that the maneuver is an on-ramp maneuver if the increase in the vehicle speed becomes less than the second speed threshold and the speed of the vehicle during the predetermined time window is greater than the third speed threshold and the difference in the vehicle speed during the time window minus the speed of the vehicle at the start time is greater than the fourth speed threshold; and classifying the driver'"'"'s driving skill using information obtained from the on-ramp or off-ramp maneuver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 19)
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12. A method for determining a driver'"'"'s driving skill of a vehicle, said method comprising:
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reading a vehicle speed signal and a vehicle yaw rate signal from vehicle sensors; determining that the vehicle has made an on-ramp or off-ramp maneuver; and classifying the driver'"'"'s driving skill if the maneuver is an on-ramp or an off-ramp maneuver using selected discriminant features obtained or derived from the maneuver. - View Dependent Claims (13, 14, 15)
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16. A system for determining a driver'"'"'s driving skill of a vehicle, said system comprising:
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vehicle sensors that provide a vehicle speed signal and a vehicle yaw rate signal; means for determining whether the vehicle is turning by determining whether the vehicle yaw rate signal is greater than a first threshold and, if so, determining that the vehicle has entered a curve that might be a curve portion of a highway on/off ramp; means for determining whether the vehicle has exited the curve by determining whether the vehicle yaw rate signal is less than a second yaw rate threshold; means for determining whether the difference between vehicle speed at the beginning of the curve and at the end of the curve is less than a first vehicle speed threshold and, if so, determining that the curve-handling maneuver is an off-ramp maneuver; means for determining whether the increase in vehicle speed during a predetermined time window is less than a second speed threshold; means for determining whether the vehicle speed during a predetermined time window of the maneuver is greater than a third speed threshold; means for determining whether a difference of the vehicle speed during the time window minus the speed at the start time is greater than a fourth speed threshold; means for determining that the maneuver is an on-ramp maneuver if the increase in the vehicle speed becomes less than the second speed threshold and the speed of the vehicle during the predetermined time window is greater than the third speed threshold and the difference in the vehicle speed during the time window minus the of the vehicle at the start time speed is greater than the fourth speed threshold; and means for classifying the driver'"'"'s driving skill using selected discriminate features obtained or derived from the on-ramp or off-ramp maneuver. - View Dependent Claims (17, 18, 20)
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Specification